CN219733976U

CN219733976U - Plane roller injection molding bearing retainer

Info

Publication number: CN219733976U
Application number: CN202320188384.9U
Authority: CN
Inventors: 郑广会; 赵培振; 郑金宇; 郑正; 郑金秀; 郑金凯
Original assignee: Shandong Golden Empire Precision Machinery Technology Co Ltd
Current assignee: Shandong Golden Empire Precision Machinery Technology Co Ltd
Priority date: 2023-02-08
Filing date: 2023-02-08
Publication date: 2023-09-22
Anticipated expiration: 2033-02-08

Abstract

The utility model discloses a plane roller injection molding bearing retainer which comprises rollers and a retainer body, wherein the retainer body is of an annular structure, the retainer body is provided with an upper end face and a lower end face, the retainer body is provided with a plurality of pockets penetrating through the upper end face and the lower end face, the pockets are annularly and uniformly distributed on the end faces, and the pockets are used for accommodating the rollers; the pocket hole is equipped with in the both sides along the hoop direction and protrudes in the thrust flange of terminal surface, the thrust flange orientation the side of pocket hole can with the lateral wall mutual offset of roller is leaned on, the thrust flange has elasticity. According to the utility model, the thrust flange protruding from the end face is arranged at the pocket hole, so that the structural strength of the retainer body, especially the structural strength of the position where the roller is located, can be increased, the roller can be prevented from falling out of the pocket hole, and the rated load of the thrust cylindrical roller bearing is further increased.

Description

Plane roller injection molding bearing retainer

Technical Field

The utility model relates to the technical field of bearings, in particular to a plane roller injection molding bearing retainer.

Background

Thrust bearings are generally composed of two or more thrust washers, which are generally divided into a shaft piece and a seat piece, and a plurality of rolling bodies, which are generally most commonly formed by combining iron or copper retainers into a whole.

The thrust cylindrical roller bearing is a kind of thrust bearing, and belongs to a separation type bearing, and can only bear unidirectional axial load and slight impact, and can limit axial displacement of a shaft (or a shell) in one direction, so that the thrust cylindrical roller bearing can be used for unidirectional axial positioning, and is suitable for bearing one-side axial load and parts with lower rotating speed, such as a crane lifting hook, a time water pump, a time centrifugal machine, a jack, a low-speed reducer and the like.

In order to increase the rated load, the radial dimension of the thrust cylindrical roller bearing is generally required to be increased, and the radial dimension of the retainer is also increased, so that the thrust cylindrical roller bearing with large rated load is generally larger in radial dimension, and the required radial installation space is also larger.

How to increase the rated load of the thrust cylindrical roller bearing without changing the radial dimension is needed to be solved.

Disclosure of Invention

In order to solve the technical problems of how to increase the rated load of the thrust cylindrical roller bearing and not change the radial dimension, the utility model aims to provide a plane roller injection molding bearing retainer, which increases the structural strength of a retainer body, in particular the structural strength of the position of a roller by arranging a thrust flange protruding from the end surface at a pocket, and can prevent the roller from falling out of the pocket and further increase the rated load of the thrust cylindrical roller bearing.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the plane roller injection molding bearing retainer comprises a retainer body, wherein the retainer body is of an annular structure, the retainer body is provided with an upper end face and a lower end face, the retainer body is provided with a plurality of pockets penetrating through the upper end face and the lower end face, the pockets are annularly and uniformly distributed on the end faces, and the pockets are used for accommodating rollers of a bearing; the pocket hole is equipped with in the both sides along the hoop direction and protrudes in the thrust flange of terminal surface, the thrust flange orientation the side of pocket hole can with the lateral wall mutual offset of roller is leaned on, the thrust flange has elasticity.

As an alternative implementation of the planar roller injection-molded bearing cage, the thrust rib is provided with a plurality of thrust ribs along the sides of the pocket.

As an alternative implementation mode of the plane roller injection molding bearing retainer, an oil passing groove is formed between a plurality of thrust flanges positioned on the same side edge of the pocket, and the bottom surface of the oil passing groove is an arc-shaped surface extending from the end face to the side wall of the pocket.

As an alternative implementation of the planar roller injection-molded bearing cage, the thrust flanges on both sides of the pocket are arranged symmetrically to each other.

As an alternative implementation of the plane roller injection bearing cage, the upper and lower end surfaces are provided with the thrust flanges in a protruding manner.

As an alternative implementation of the planar roller injection-molded bearing cage, the thrust flanges of the upper and lower end faces are symmetrically disposed with respect to each other.

As an alternative implementation of the injection-molded bearing cage for flat rollers, the side of the thrust rib facing the pocket is an arcuate surface that can be brought into contact with the side wall of the roller.

As an alternative implementation of the injection-molded bearing cage for plane rollers, the side walls of the pocket are arc-shaped surfaces which can be attached to the side walls of the rollers, and the side surfaces of the thrust rib facing the pocket are connected with the side walls of the pocket in an extending manner.

The utility model has the beneficial effects that:

1. according to the utility model, the thrust flanges protruding from the end surfaces are arranged at the pocket holes, so that the structural strength of the retainer body, especially the structural strength of the positions of the rollers, is increased, and the rated load of the thrust cylindrical roller bearing can be increased without changing the radial size. The installation space of the thrust cylindrical roller bearing with larger rated load is reduced, and the installability is improved.

2. Because the thrust flange has elasticity, consequently set up the size of thrust flange in suitable range, just can guarantee that the roller can block into the pocket smoothly, after the roller card was gone into the pocket, the thrust flange can also support each other with the lateral wall of ball to the side of pocket to this thrust flange can prevent the roller to deviate from the pocket, further increases thrust cylindrical roller bearing's rated load, increases cylindrical roller bearing's the maximum load that can bear.

3. The existing thrust cylindrical roller bearing has mounting errors when rollers are mounted in the pockets, so that the bearing retainer is often deformed to influence the use of the bearing.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a schematic perspective view of an exemplary embodiment of the present utility model;

FIG. 2 is an enlarged schematic view of the structure shown at A in FIG. 1;

FIG. 3 is a schematic elevational structural view of an exemplary embodiment of the present utility model;

FIG. 4 is a schematic rear view of an exemplary embodiment of the present utility model;

FIG. 5 is a schematic left-hand structural view of an exemplary embodiment of the present utility model;

FIG. 6 is a right side schematic view of an exemplary embodiment of the present utility model;

FIG. 7 is a schematic top view of an exemplary embodiment of the present utility model;

fig. 8 is a schematic bottom view of an exemplary embodiment of the present utility model.

Reference numerals illustrate:

1. a holder body; 11. an end face; 12. a pocket;

2. a thrust rib; 21. and passing through the oil groove.

Detailed Description

For a clearer understanding of the technical features, objects and effects of the present utility model, embodiments of the present utility model will now be described with reference to the drawings, in which like reference numerals refer to identical or structurally similar but functionally identical components throughout the separate views.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, however, the present utility model may be practiced in other ways than those described herein, and therefore the scope of the present utility model is not limited to the specific embodiments disclosed below.

Referring to fig. 1-8, the utility model provides a plane roller injection molding bearing retainer, which comprises rollers and a retainer body 1, wherein the retainer body 1 is of an annular structure, the retainer body 1 is provided with an upper end face 11 and a lower end face 11, the retainer body 1 is provided with a plurality of pockets 12 penetrating through the upper end face 11 and the lower end face 11, the pockets 12 are uniformly distributed on the end face 11 in an annular direction, and the pockets 12 are used for accommodating the rollers of a bearing; the pocket 12 is equipped with the thrust flange 2 that protrudes in terminal surface 11 along the both sides of hoop direction, and thrust flange 2 can mutually lean on with the lateral wall of roller towards the side of pocket 12, and thrust flange 2 has elasticity.

The thrust rib 2 can receive an axial force from the roller, and can increase the rated load. The rollers of the bearing are rolling bodies in the bearing.

On the one hand, the thrust rib 2 protruding from the end face 11 is arranged at the pocket 12, so that the structural strength of the retainer body 1, especially the structural strength of the position of the roller is increased, and the rated load of the thrust cylindrical roller bearing can be increased without changing the radial size. The installation space of the thrust cylindrical roller bearing with larger rated load is reduced, and the installability is improved.

On the other hand, because the thrust flange 2 has elasticity, consequently set up the size of thrust flange 2 in suitable range, just can guarantee that the roller can block into pocket 12 smoothly, after the roller card was gone into pocket 12, thrust flange 2 can also support each other with the lateral wall of ball to the side of pocket 12 to this thrust flange 2 can prevent the roller to deviate from pocket 12, further increases thrust cylindrical roller bearing's rated load, increases cylindrical roller bearing's the maximum load that can bear.

In the third aspect, when the conventional thrust cylindrical roller bearing is assembled into the pocket 12, the conventional thrust cylindrical roller bearing has an installation error, which often causes deformation of the bearing retainer and affects the use of the bearing, and the elastic thrust rib 2 is provided, so that the installation error is reduced, deformation damage to the bearing retainer during the installation of the roller is reduced, and even if the thrust rib 2 is deformed, the use of the bearing retainer is not affected.

In a preferred embodiment of a planar roller injection-molded bearing cage, the thrust rib 2 is provided in plurality along the sides of the pocket 12. With this, thrust flange 2 sets up along the side segmentation of pocket hole 12, can realize lightweight design, reduces the friction area of roller and thrust flange 2, reduces frictional force, improves lubrication and heat dispersion, improves the highest rotational speed of roller, improves the performance of bearing, also can strengthen the intensity of bearing holder.

In a preferred embodiment of the planar roller injection molded bearing retainer, a through oil groove 21 is formed between a plurality of thrust flanges 2 on the same side of the pocket 12, and the bottom surface of the through oil groove 21 is an arc surface extending from the end surface 11 to the side wall of the pocket 12. In this way, the oil groove 21 can guide grease/lubricant into the pocket 12, reduce friction force between the roller and the pocket 12 and the thrust rib 2, improve lubrication and heat dissipation performance, improve the highest rotational speed of the roller, and improve the performance of the bearing.

In a preferred embodiment of a planar roller injection-molded bearing cage, the thrust flanges 2 on both sides of the pocket 12 are symmetrically disposed with respect to each other. Therefore, the balance of the bearing retainer structure can be increased, and deflection of the bearing during high-speed rotation is avoided.

In a preferred embodiment of a planar roller injection-molded bearing cage, the upper and lower end faces 11 are each provided with a thrust rib 2 protruding. Therefore, the balance of the bearing retainer structure can be increased, and deflection of the bearing during high-speed rotation is avoided.

In a preferred embodiment of a planar roller injection-molded bearing cage, the thrust flanges 2 of the upper and lower end faces 11 are symmetrically disposed with respect to each other. Therefore, the balance of the bearing retainer structure can be increased, and deflection of the bearing during high-speed rotation is avoided.

In a preferred embodiment of a planar roller injection-molded bearing cage, the side of the thrust rib 2 facing the pocket 12 is arcuate to be able to engage the side walls of the rollers. Therefore, on one hand, the linear friction between the roller and the thrust flange 2 can be reduced, the abrasion and noise caused by the fact that the roller is not attached to the thrust flange 2 are reduced, on the other hand, the contact surface of the thrust flange 2 and the roller is increased, the axial load born by the roller can be improved, and the axial rated load of the bearing is further improved.

In a preferred embodiment of a planar roller injection-molded bearing cage, the side walls of the pocket 12 are arcuate surfaces that can conform to the side walls of the rollers, and the side surfaces of the thrust rib 2 facing the pocket 12 are connected with the side walls of the pocket 12 in a mutually extending manner. Therefore, friction between the connection part of the thrust flange 2 and the side wall of the pocket 12 and the side wall of the roller is reduced, the thrust flange 2 and the side wall of the pocket 12 can be integrally processed and formed, and processing steps are reduced.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for system embodiments, since they are substantially similar to method embodiments, the description is relatively simple, as relevant to see a section of the description of method embodiments.

The foregoing is merely exemplary of the present utility model and is not intended to limit the present utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are to be included in the scope of the claims of the present utility model.

Claims

1. A planar roller injection molded bearing cage comprising:

the retainer comprises a retainer body, wherein the retainer body is of an annular structure and is provided with an upper end face and a lower end face, the retainer body is provided with a plurality of pockets penetrating through the upper end face and the lower end face, the pockets are annularly and uniformly distributed on the end faces, and the pockets are used for accommodating rollers of a bearing; the pocket hole is equipped with in the both sides along the hoop direction and protrudes in the thrust flange of terminal surface, the thrust flange orientation the side of pocket hole can with the lateral wall mutual offset of roller is leaned on, the thrust flange has elasticity.

2. A planar roller injection molded bearing retainer as claimed in claim 1 wherein said thrust rib is provided with a plurality of said pockets on a side thereof.

3. A planar roller injection molded bearing retainer as claimed in claim 2 wherein said thrust flanges on the same side of said pocket define an oil passage therebetween, said oil passage having a bottom surface of an arcuate surface extending from said end surface toward said pocket side wall.

4. The flat roller injection molded bearing retainer of claim 1 wherein said thrust flanges on opposite sides of said pocket are symmetrically disposed with respect to each other.

5. The flat roller injection molded bearing retainer of claim 1 wherein said thrust flanges are provided on both said upper and lower end surfaces.

6. The flat roller injection molded bearing retainer of claim 5 wherein said thrust flanges of said upper and lower end surfaces are symmetrically disposed with respect to each other.

7. The flat roller injection molded bearing retainer of claim 1, wherein the side of the thrust rib facing the pocket is an arcuate surface capable of conforming to the side wall of the roller.

8. The flat roller injection molded bearing retainer of claim 7, wherein the pocket side walls are arcuate surfaces capable of engaging the roller side walls, and wherein the thrust rib is connected in extending relation to the pocket side walls.